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4. ADJUSTMENT OF STITCHES

fabric : cotton 1-layer   
thread : 100% polyester spun thread (maxi-lock or metrosene thread) 
needle : SCHMETZ HAX1SP #11/CR   
machine: 1-needle (right), 3-thread sewing  
width  : 5.0mm (max) 
length : 3.0mm  
D.F.   : N  
stitch selector : B   

4-1 ADJUSTMENT OF NEEDLE THREAD SENSOR CABLE 

The needle thread sensor cable effects the timing of both needle thread and
looper threads.  You are required to adjust this cable first.

NOTE: The needle thread sensor cable adjusting screw works; 

Turn clockwise and both needle & looper threads become loose. 

Turn counter-clockwise and both needle & looper threads become tight.

a) Line up the looper thread fine-tuning screw at the standard position.

b) Sew 1-layer of cotton with 1-needle (right) 3-thread as shown in the above 

and adjust only the needle thread in the stitch not to have a puckering. 

Disregard the looper threads in the stitch at this stage.

c) Then, adjust the looper thread sensor cable (4-2). 

4-2 ADJUSTMENT OF LOOPER THREAD SENSOR CABLE 

Before the adjustment of looper thread sensor cable, adjust the needle 

thread sensor cable first (4-1). 

NOTE: The looper thread sensor cable adjusting screw works; 

* Turn clockwise and looper threads become loose.   

* Turn counter-clockwise and looper threads become tight. 

a) Line up the looper thread fine-tuning screw at the standard position.

b) Sew 1-layer of cotton with 1-needle (right) 3-thread as shown in the previous page and turn the

screw until you get the ideal stitch which looper threads are not loose and fabric is not curled. 

c) After adjustment of looper thread sensor cable, the timing of needle thread

might be changed.  Therefore, check the needle thread sensor cable again (see 4-1). 

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Summary of Contents for imagine wave BLE3ATW

Page 1: ...SERVICE MANUAL MODEL BLE3ATW Vol 1 0...

Page 2: ...Height of feed dog Distance of lower looper tip from right side of right needle AT Distance of upper looper tip from right side of right needle Distance of lower looper tip from right side of right ne...

Page 3: ...plate 12 1 0 1 0 Upper looper adjustment 8 5 Adjustment of lower looper and upper looper Lower looper adjustment Max 8 5 Needle guard adjustment 0 8 0 3 0 1 0 0 0 Needle 1 8 Front needle guard Back n...

Page 4: ...lley Note The screws of thread derivery cam and thread derivery changing cam should be placed in line 3 2 CLEARANCE A AND B FOR THREAD PRESS POST ARM CORRECT CLEARANCE 0 4mm both front and rear How to...

Page 5: ...Rear clearance adjustment A Front clearance adjustment B Shut position Shut position 0 4 0 4 Open position Open position 4 5 6 7 8 0 9mm 0 4mm 4 3 1 2 9 3 1 2 9 8...

Page 6: ...in the order of d c b a f Make sure that the 3 pcs of sensor cable are exactly in the roller g After you replace the thread delivery unit you are required to adjust and check following items 1 Adjust...

Page 7: ...6 15 5 4 12 3 16 10 11 14 1 2 29 30 23 24 25 27 28 26 9 13 21 22 19 18 17 20 6 7 8 A...

Page 8: ...1 about 498mm 20 inch a Replacement of fabric thickness sensor cable 3 1 Remove the cable 2 Hook the cable both side 3 Check the stitches see P 9 4 b Replacement of needle thread sensor cable 2 1 Mov...

Page 9: ...4 5 13 6 16 15 3 2 1 5 7 18 17 5 20 19 23 5 21 24 22 10 9 4 5 12 4 8 11 14 8...

Page 10: ...hown in the above and adjust only the needle thread in the stitch not to have a puckering Disregard the looper threads in the stitch at this stage c Then adjust the looper thread sensor cable 4 2 4 2...

Page 11: ...cable Looper thread sensor cable Looper thread sensor cable adjusting screw Needle thread sensor cable adjusting screw Standard Position Fine Tuning screw 10 Turn Clockwise Become Loose Turn Counter c...

Page 12: ...c Bend the place A on needle threader holder and adjust the direction of high and low for the needle threader d Change the needle threader select plate right and left and make sure if the needle threa...

Page 13: ...12 31 29 30 28 25 23 27 26 24 22 21 20 33 32 35 34 36 6 12 8 4 3 2 1 10 11 9 13 14 15 16 17 19 5 18 7 6 A...

Page 14: ...Remove bace plate c Remove piston driving arm fixing screw 11 SM3005ZU d Remove piston driving arm from piston driving shaft It will be easy to remove the arm from the shaft if you push the shaft to...

Page 15: ...3 5 4 3 9 8 15 12 13 4 17 2 1 6 10 14 11 16 7 14...

Page 16: ...bric b Cutting width adjustment Loosen fixing screws of knife holder and knife driving shaft Turn Knife driving shaft crockwise or counter clockwise Make sure cutting width c Rotate the stitch width d...

Page 17: ...sen screw of adjusting chaining tongue and remove holder pin Replace the adjusting chaining tongue with new one d Make pararell between A flat side of chaining holder pin and B top surface of adjustin...

Page 18: ...Instruction Book P 12 Is the stitch selector positioned correctly See Quick Reference Guide Is the looper thread fine tuning screw positioned correctly See Instruction Book P 13 Are the threads recom...

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